package main

import (
	"flag"
	"log"
	"os"
	"renderer1/hrend"
	"runtime/pprof" // For performance profiling (unnecessary)

	rl "github.com/gen2brain/raylib-go/raylib"
)

const (
	Width       = 640
	Height      = 480
	NearClip    = 0.1
	FarClip     = 100
	FOV         = 90.0
	ZOffset     = -1.5
	ObjectFile  = "head.obj"
	TextureFile = "../head.jpg"
)

func must(err error) {
	if err != nil {
		panic(err)
	}
}

// However flag works... idk
var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file")

// var dozbuf = flag.Bool("zbuffer", false, "Write zbuffer instead of image")
// var p6file = flag.String("p6file", "", "Output binary ppm to given file instead")
// var fov = flag.Float64("fov", 90, "Horizontal FOV in degrees")
// var xofs = flag.Float64("xofs", 0, "Offset image by x")
// var zofs = flag.Float64("zofs", -1.5, "Offset image by z (should be negative)")
// var repeat = flag.Int("repeat", 60, "Amount of times to repeat render")

func main() {
	log.Printf("Program start")

	flag.Parse()
	if *cpuprofile != "" {
		log.Printf("CPU profiling requested, write to %s", *cpuprofile)
		f, err := os.Create(*cpuprofile)
		must(err)
		defer f.Close()
		err = pprof.StartCPUProfile(f)
		must(err)
		defer pprof.StopCPUProfile()
	}

	rl.InitWindow(Width, Height, "Simple renderer with raylib")
	defer rl.CloseWindow()

	rl.SetTargetFPS(60)

	var thing hrend.Vec2i
	log.Print(thing)

	for !rl.WindowShouldClose() {
		rl.BeginDrawing()

		rl.ClearBackground(rl.RayWhite)
		rl.DrawText("Congrats! You created your first window!", 190, 200, 20, rl.LightGray)

		rl.EndDrawing()
	}
}